构建无线局域网时,必须使用无线网卡才能将PC机接入网络。
参考答案:对
His ambition is _______ an actor.[ ]
A. becoming
B. become
C. to become
D. became
产物是异构烷烃的混合物,其烷基化反应是()与烯烃在酸催化剂的作用下完成的。
A.正丁烷
B.异丁烷
C.丁二烯
D.丁烯